From: Vincent Kang Fu <VFu@fusionio.com>
Date: Fri, 26 Apr 2013 22:56:01 +0000 (-0600)
Subject: Add log_info_flush()
X-Git-Tag: fio-2.1~9
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=fdd5f15f8231e8c91c4deff22e630a34addd0fef

Add log_info_flush()

If fio dumps status through -USR1 or similar and output is
being stored in a file, the buffering on the file descriptor
by the library can cause is not to see all the output. Ensure
that it gets flushed after dumping stats.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/log.c b/log.c
index d481edf2..4822c335 100644
--- a/log.c
+++ b/log.c
@@ -71,6 +71,14 @@ int log_info(const char *format, ...)
 		return fwrite(buffer, len, 1, f_out);
 }
 
+int log_info_flush(void)
+{
+	if (is_backend || log_syslog)
+		return 0;
+
+	return fflush(f_out);
+}
+
 int log_err(const char *format, ...)
 {
 	char buffer[1024];
diff --git a/log.h b/log.h
index 25f92f9e..a885be72 100644
--- a/log.h
+++ b/log.h
@@ -12,6 +12,7 @@ extern int log_info(const char *format, ...) __attribute__ ((__format__ (__print
 extern int log_local(const char *format, ...) __attribute__ ((__format__ (__printf__, 1, 2)));
 extern int log_valist(const char *str, va_list);
 extern int log_local_buf(const char *buf, size_t);
+extern int log_info_flush(void);
 
 enum {
 	FIO_LOG_DEBUG	= 1,
diff --git a/stat.c b/stat.c
index 7ff7ad4d..03a45fc7 100644
--- a/stat.c
+++ b/stat.c
@@ -1354,6 +1354,7 @@ void show_run_stats(void)
 		show_idle_prof_stats(FIO_OUTPUT_NORMAL, NULL);
 	}
 
+	log_info_flush();
 	free(runstats);
 	free(threadstats);
 }